/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineFriendsInterface.h
Copies the list of friends for the player previously retrieved from the online service
true if friends list was found
bool GetFriendsList ( int32 LocalUserNum, const [FString](API\Runtime\Core\Containers\FString) & ListName, [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FOnlineFriend](API\Plugins\OnlineSubsystem\FOnlineFriend) > > & OutFriends )